摘要： 目前水下图像质量评价方法虽然准确性较高，但与人类主观评价相关性较低，难以实现高质量的评价。针对该问题，提出一种基于人类视觉系统进行水下图像质量评价的UIQA方法。将基于CIELab表色系的色彩饱和度、基于暗通道理论的亮度对比度和图像清晰度3个测量分量进行线性组合，来评价不同场景的水下图像质量，并将评价结果与采用UIQM方法和UCIQE方法得到的结果进行对比。实验结果表明，与UIQM方法和UCIQE方法相比，采用UIQA方法得到的水下图像质量评价结果与主观评价结果具有高度一致性，与人类主观评价相关性更高。

关键词: 水下图像质量, 色彩饱和度, 亮度对比度, 清晰度, 人类主观评价

Abstract: Despite the high accuracy of existing underwater image quality assessment methods,they have weak correlation with subjective assessment of human beings,so it is difficult to achieve high-quality evaluation.To address the problem,this paper proposes an Underwater Image Quality Assessment(UIQA) method based on the human vision system.The method makes linear combinations of color saturation based on CIELab surface color system,brightness contrast based on dark channel theory,and image sharpness,so as to evaluate the underwater image quality in different scenes.The evaluation results are compared with those obtained by the UIQM method and UCIQE method.Experimental results show that compared with the quality assessment results of underwater images obtained by UIQM method and UCIQE method,those obtained by the UIQA method are highly consistent with the subjective evaluation results and have higher correlation with subjective evaluation of human beings.

Key words: underwater image quality, color saturation, brightness contrast, sharpness, subjective assessment of human beings

中图分类号: 

• TP391